diff --git a/src/Connection.php b/src/Connection.php
index 4a7c03d..e047de2 100644
--- a/src/Connection.php
+++ b/src/Connection.php
@@ -22,7 +22,7 @@
 use PDOException;
 use Serializable;
 
-class Connection implements Serializable
+class Connection
 {
     /** @var    string  Username */
     protected $username;
@@ -608,7 +608,7 @@ protected function bindValues(PDOStatement $statement, array $values)
      *
      * @return  string
      */
-    public function serialize()
+    public function __serialize()
     {
         return serialize([
             'username' => $this->username,
@@ -625,7 +625,7 @@ public function serialize()
      *
      * @param   string $data Serialized data
      */
-    public function unserialize($data)
+    public function __unserialize($data)
     {
         $object = unserialize($data);